Photo 20131121. Mies van der Rohe’s pavilion at the Toronto Dominion Centre, Toronto.

From Wikipedia: The TD Centre comprises a collection of structures spread across a granite plinth, all regulated, in three dimensions, and from the largest scale to the smallest, by a mathematically ordered, 1.5 m2 (16 sq ft) grid.

Photo 20131121. Mies van der Rohe's banking pavilion at the TD Centre, Toronto.